| A | B |
|---|
| feeble | lacking strength; weak |
| missions | scientific expeditions |
| muscles | body tissues composed of fibers. The fibers can tighten or loosen to move parts of the body. |
| nauseous | feeling sick, as if you're about to vomit |
| astronauts | pilots or members of the crew of a spacecraft |
| capsule | the enclosed front section of a rocket made to
carry instruments, astronauts, etc., into space. In flight, the capsule can separate from
the rest of the rocket and go
into orbit or be directed back to Earth. |
| hatch | a trapdoor covering an opening in an aircraft's or ship's deck |
| horizon | line where the Earth and sky seem to meet;
skyline. You cannot see
beyond the horizon. |
| lunar | of, like, or about the moon |
| module | a self-contained unit or system within a larger system, often designed for a particular function |
| quarantine | detention, isolation, and other measures taken to prevent the spread of an infectious disease |
| impact | action of striking one thing against another; collision |
| sphere | ball or globe. The sun, the moon, Earth, and stars are spheres. |
| transmission | passage of electronic waves from a transmitter to a receiver |
